Finding the Fourth Proportional to 1,519.27, 2,277.69 and 870.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.27 : 2,277.69 = 870.46 : x
2. Step 2: Convert to fraction form
   1,519.27/2,277.69 = 870.46/x
3. Step 3: Cross multiply
   1,519.27x = 2,277.69 × 870.46
4. Step 4: Simplify right side
   1,519.27x = 1,982,638.04
5. Step 5: Solve for x
   x = 1,982,638.04/1,519.27
6. Step 6: Final answer
   x = 1,304.99